Gold-saver.



Patented Dec. 3, |90l.

M. FLATLAND & B. LISTER.

G 0 L D S A V E R.

(Application filed Jan. 22, 1901.)

(No Model.)

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narily escapes in the overflow.

UNITED STATES PATENT Ori-TCEm MARTIN FLATLAND AND BENJAMIN LISTER, OFVALLEJO, CALIFORNIA.

GOLD-SAVER.

SPECIFICATION forming part of Letters Patent No. 687,87 5, datedDecember 3, 1901. Application led January 22, 1901. Seriell No. 44,304.(No model.)

To a/ZZ whom, t may concern:

Be it known that we,MARTIN FLATLAND and BENJAMIN LIs'rER, residing at715 Virginia street, in the city of Vallejo, county of Solano, and Stateof California, citizens of the United States, have invented certain newand useful Improvements in Gold Savers; and we do hereby declare thefollowing to be a full, clear,` and exact description of-said invention,such as will enable others skilled in the art to which it most nearlyappertains to make, use, and practice the same.

This invention relates to improvements in amalgamators, and particularlyto amalgamators forhandling auriferous sands.

The object of this invention is to amalgamate tine particles ortlourgold, which ordi- In the drawings, Figure l is a verticalcrosssection on the line :t x, Fig. 2, of an amalgamator constructed inaccordance with this invention. Fig. 2 is a view in plan from above.

In the description with reference to the drawings the primary groups ofmechanisms will be designated by a letter. The secondary mechanisms ofthese groups will be designated by the common letter strengthened by anumeral. The receiving-hopper will be distinguished by the letter A, theamalgamating-pile by the letter B, the connecting-pipes between thehopper and the amalgamatingpile by the letter O, and the water-supplypipes by the letter D.

In construction the invention consists of the hopper A, having thehinged screen A therein,the incline A2, extending nearly to thespray-pipe D, leaving the space A3 between, and the incline A4, parallelto A2, having the opening A5 into the chamber A, The chamber A6 deliversto the outlet-pipe O', connecting with the extension C2, delivering intothe spray-head B in the bottom of the amalgamating-pile, which consistsof an outer cylindrical shell B2, open at the top and having the annularflange B3, by means of which it is se- .Oured upon the bed-plate B4 bythe ring B5,

screwed to the bed-plate.

The amalgamating apparatus consists of a series of hemisphericalinverted plates B6, hung by means of a central perforation upon the rodB7, resting at the bottom in the recess in the top of the spray-head Band held in position by a yoke BE at the top of the pile. The series ofamalgamating-plates are separated by a iiller B9 between each, the wholeseries being clamped by a wedge pin B10, driven through a hole in thecentral rod B7 above the top plate. The overflow of the amalgamator isaccommodated by a tray B11, secured to the annular flange B12 around thetop of the cylinder B2, to which the yoke B8 is secured.

The operation of this invention is as follows: The sand is dumped intothe hopper A upon the screen A', through which it falls upon the inclineA2, passes through the space A3, and is carried up the incline A1 by theflow from the spray-pipe through the opening A5 into the chamber A5.Passing into the pipe C', the pulp is given an augmented impetus by ahead of water liberated behind it from the pipe D2 into the extensionO2, causing it to spray with added force through the sprayhead B. Thepulp in a highly-agitated state floats upward through theamalgamating-pile B in constant contact with the plates B6, with whichthe particles of gold afnitize. The overllow from the tray B11 can bepassed again through the machine it' thought desirable.

A draw-oft B13 is provided in the bottom of the pile B for removal ofsediment of particles too heavy to tloat.

The pipe O2 is readily cleaned by removal lof the plug C3.

For convenience the screen A is hinged and capable of being thrown intothe position shown in dotted lines.

one side of the chamber A5.

Having thus described the invention, what is claimed is In anamalgamator, the combination of a hopper having a screen member therein,an inclined surface below the screen; an incline parallel with thebefore-mentioned incline,

This is also true of leaving a space between connecting with the hopper`to the amalgamating-pile; substanlo chamber below the said inolines; anoutlet tially as described.

from said chamber emptying into the bottom In testimony whereof We havehereunto set of an amalgamating-pile consisting of a series our handsthis 14th day of January, 1901.

of hemispherieal plates mounted upon a cen- MARTIN FLATLAND.

tral shaft and surrounded by a cylindrical BENJAMIN LISTER.

shell open at the top, and having an inlet at the bottom Connected withsaid hopper; and means for agitating the pulp passing from theWitnesses:

BALDWIN VALE, JNO. A. BROWNE.

